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500 Series Power Steering Conversion Box 1964-72 Chevy Midsize

Part #
CP50004
In Stock
$449.00
1964-72 Chevy Midsize, 1967-1979 Chevy Camaro, 1968-1974 Chevy Nova, 1965-1976 Chevy Fullsize, 1978-1987 G-Body, 59-76 Caddy, 14-1 Ratio, 3.5 Turn to Turn, 34 x 30 Splined
The CP50004 500 Series Power Steering Conversion Box incorporates late-model steering technology with a 14:1 ratio and all new components. This conversion box is designed to bolt directly to your vehicle's frame, eliminating the need for additional brackets or adapters. It enhances your driving experience by providing a modern, tight steering feel, ensuring improved handling and control across a wide range of GM mid-size vehicles
More Information
Product Name 500 Series Power Steering Conversion Box 1964-72 Chevy Midsize SKU CP50004
Gear Box Type Power Ratio 14-1
Pitman Arm Included No Pitman Arm Shaft Size 1 1/4 GM with 32 Splines and 4 Master Splines
Input Shaft 3/4 x 30 Pressure Port 11/16 x 18 Flare (Located Closest to the Engine)
Return Port 5/8th x 18 Flare (Located Closest to the Input Shaft) Reccomended Gallons Per Minute 2.8-3.5 (3.0-4.0 if Runnig A HydraStop)
Reccomended Pressures 1,100-1,250 (1200-1300 If Running a HydraStpo Also) New Or Rebuilt Gearbox New
Turn To Turn 3.5 Warranty Yes
Prop65 Yes Brand CPP 500 Series
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Customer Questions
I've tried 3 Pittman Arms (stock) and none fit! Which Pittman Arm will work?
  The rule of thumb is you need a power steering pitman arm, not a manual. A power steering pitman arm is 1.250, a manual is 1.00. There's a few exceptions on some 70-80s midsize cars which is where you need to call us if that's the issue. Our Tech...
Is this CP50004 gear box inverted flare or o-ring?
Our CP50004 is an inverted flare gear box. 
My original box has 3 mounting holes but yours has 4. Do I drill my frame for the other hole?
Drilling is not necessary. CP50004 is made to fit a large number of applications. You will only use the mounting holes that are currently used with your stock steering box.
Do I need to buy a special pitman arm to use this 500 Series Power Steering Gear Box (Part CP50004)?
The CP50004 steering box is made to be used with stock GM power steering splined pitman arm. If you are converting from manual to power, a new pitman arm is required. If you are upgrading your old power steering box, the original pitman arm will work...
Can I use my stock rag joint to hook it up?
You will need to modify or replace your steering shaft to install the 500 Series box. We offer an RJC-605L that will allow you to modify your stock shaft or you can replace it with a shortened steering shaft 55020/55022 depending on your application.&...
Is this gear box inverted flare or o-ring?
Our CPP 500 Series gear box, part CP50004, is an inverted flare gear box. 
How do I know which is the pressure port?
The pressure port is the larger, 11/16-18, port and sits higher on the casting.
Is 500 steering box more narrow than stock 69 impala
Our CPP 500 Series Power Steering Gearbox will be narrowed a bit at the adjusting sector section but overall pretty similar in size compared to the original. Please call our tech line if you need measurement. 
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